The Dixie Chicks were not much spoken of in the 2000s after Natalie Maines spoke out about Bush. They managed a comeback years later but were kinda out during some of their prime years.
Bill Maher was literally canceled but then ended up on HBO so that’s a wash.
The Dixie Chicks were at the height of their careers and one of the top acts in the world. Overnight, you’d be hard pressed to find a single radio station that would play them. Their comeback during the Trump years was basically riding the culture war for a comeback, but the original cancellation was legit a massive push from those in power to silence them